Page 1
Cost-effective QAM demodulator and MPEG2 decoder
Features
■ ITU-T J83 Annexes A/B/C, DVB-C compliant
■ 256 QAM demodulation and FEC sub-system
■ MPEG2 MP@ML video decoding
■ Audio decoding (MPEG1, 2, MP3, Dolby
Digital 5.1)
■ Linux and OS21 compatible ST40 applications
CPU
■ 16-bit SDR/DDR1 compatible local memory
interface
■ Multi-stream, DVR capable, transport stream
processing
■ Extensive connectivity (USB 2.0 host/ULPI,
Ethernet MAC MII/RMII, DVB-CI)
STi5197
STi5197L
for SD set-top box applications
Data brief
■ Cable STBs can be produced with very small
BOM and two-layer PCBs
■ Active and passive low power modes
■ Integrated voltage regulator
Description
The STi5197 integrates in a single IC, QAM
demodulation, FEC, Multi-stream transport
demultiplexing, an applications CPU, audio/video
decode, video processing, graphics and display,
STB peripherals, audio/video DACs, digital
audio/video outputs, USB 2.0 host controller/ULPI
and an Ethernet MAC MII/RMII.
The STi5197L is a feature-optimized variant for
Asian markets.
JTAG
CPU/FPU
ST40
MMU
Interrupts
I cache
D cache
Timer
Debug
Transport
Security
PTI
TS merger
Transport streams
Parallel/serial in/out
Resets Analog out
Clocks
Modes
Clock Gen
System serv
FDMA
Blitter display
Video decoder
LCMPEG
Demodulator
DVB-C
Transport
streams
IF in
Audio decoder
Video planes
Graphic planes
Cursor plane
Main VDP
Aux VDP
Deinterlacer
Capture
PCM I/O
S/PDIF out External interrupts
Audio I/O
PCM players
S/PDIF player
DACs
STBus
Display Video I/O
STB peripherals I/O
Peripherals
SSC
UART
GPIO
PWM
Infrared
Smartcard
ILC
DVOs
Denc
Teletext
DACs
VTG
Digital video SD in/out
Analog video SD out
System
interfaces
EMI
SPI
LMI
Connectivity
Flash, SFlash
NOR, NAND
Serial Flash
SDRAM/DDR
Memory
USB
Ethernet
March 2010 Doc ID 15456 Rev 3 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
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Introduction STi5197L, STi5197
1 Introduction
The STi5197 uses state-of-the-art process technology to provide an ultra low cost, full
featured, SD set-top box SoC. It is a highly integrated solution combining QAM
demodulation, audio/video decoding and applications processing into a single chip, suitable
for MPEG2-based Cable networks worldwide.
The STi5197 provides a solution for operators to specify a range of low cost SD STBs
including low cost Zappers, Interactive STBs and DVR-capable STBs, with content delivery
using broadcast or broadband networks, or both (Hybrid STBs).
The STi5197 is optimized for secure Pay-TV applications with integrated DVB, DES, Multi2
and ICAM descramblers and smartcard interfaces.
The STi5197 offers enhancements in performance, features and integration to current users
of ST’s MPEG2 SD family of audio/video decoders and QAM demodulators, whilst reducing
cost and time-to-market for the next generation of deployments. Few external components
are required to realize a complete STB solution, resulting in very low BOM cost.
Features Benefits
Combines a configurable QAM demodulator
with STB decoding and display functions.
ST40 applications CPU,
32K I cache, 32K D cache.
STMicroelectronics’ video decoding system with
Blitter display.
Integrated USB 2.0 host,
Ethernet MAC with MII/RMII.
Low power process, design and architecture. Low operating power consumption.
Available in 15×15 package with ballout
optimized for 2-layer PCBs.
Support for Serial Flash including secure boot. Allows low cost BOM, and safeguards boot code
This highly integrated SoC helps to reduce board
area and manufacturing cost, allowing low-cost,
small-size STBs to be designed for DVB-S
networks.
Superscalar performance from a single CPU core,
using standard tools and operating systems (Linux,
OS21).
Allows dual SD decoding of MPEG2 video with PIP
capability.
Enables connectivity to HDD for PVR systems and
to Ethernet networks for IP TV and hybrid/IP STBs.
Best in class, low-power standby mode. Fast
resume from standby.
Reduced board manufacturing costs and board
size.
integrity.
2/4 Doc ID 15456 Rev 3
Page 3
STi5197L, STi5197 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
05-Mar-2009 1 Initial release
30-Jul-2009 2
23-Mar-2010 3 Content simplified. STi5197L information added to front cover.
New cover graphic applied. Table 1 amended. Features/benefits
added to page 2. Removed TSMF references.
Doc ID 15456 Rev 3 3/4
Page 4
STi5197L, STi5197
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